Bar traveler for spinning machines



April 17, 1934. H. E. HERR 1,955,294

BAR TRAVELER FOR SPINNING MACHINES Filed May 2, 1933 M'KiVL/L Patented Apr. 17, 1934 UNiTED STATES BAR TRAVELER PATENT OFFICE FOR SPINNING MACHINES Application May 2, 1933, Serial No. 668,923

'7 Claims. (01. 118--61) This invention relates to certain new and useful improvements in the bar travelers employed in connection with spinning machines.

One of its objects is to so design and construct a bar traveler as to effectually guide and control the position of the thread as it travels under the bar to the bobbin and at the same time cause the traveler to be substantialy balanced at all times in its movement about its guide or spinning ring and thereby prevent tail-whipping of the traveler on the ring.

Another object of the invention is to provide a bar traveler of this character which is simple and inexpensive in construction, which is easy to manufacture, and which is so designed as to retain both bearing legs of the traveler in a constant position on the ring.

In the accompanying drawing:--

Figure 1 is a topplan view of a spinning rin showing the improved traveler in position thereon. Figure 2 is an enlarged cross section taken substantially in the plane of line 2-2, Figure 1. Figure 3 is an enlarged, fragmentary top plan view of the traveler in operative relation to the bearing ring. Figure 4 is a perspective view of the bar traveler.

Similar characters indicate corresponding parts throughout the several views.

In spinning machines of the character to which my invention is particularly applicable, the threads to be twisted are delivered by feed rolls (not shown) to a take-up spool or bobbin 10 mounted on a revolving spindle, and surrounding the take-up spool for reciprocation axially thereof, as well known in the art, is a supporting base 01' holder 11 for a spinning or traverse ring 12 upon which the traveler is adapted to revolve.

The holder 11, which supports the ring 12, has a central opening 13 through which the spool :10 extends, and at its outer edge this holder is provided with oppositely-facing, slotted cars 14 for securely fastening it to the reciprocating bar of the spinning machine. Rising from the outer edge of this holder are yieldable clamping posts or brackets 15 for detachably receiving and holding the spinning ring in position thereon. The inner edge of the holder may be provided with an upwardly-facing annular flange or neck 16.

During the operation of the spinning machine, the bar traveler assumes a more or less upright or outwardly-directed position and revolves with and about the take-up spool, the thread passing downwardly from the feed rolls and thence laterally under the traveler to be wound upon the spool. In this action it is necessary to control the position of the thread on the traveler and myv traveler has been primarily designed with that object view.

In its preferred construction, the bar traveler is constructed of steel wire and shaped in the manner shown clearly in Figures 3 and 4, the same being bent in a substantially U-shape to form a thread-engaging or cross bar 17, legs 18 depending from the ends of the bar and arranged to extend freely into the annular space or channel 19 formed between the inner bearing edge of the spinning ring 12 and the neck 16 of the holder, and extensions or bearing arms 20 projecting outwardly from the lower ends of the legs and adapted to enter the lateral continuation of the channel into more or less hook-like engagement with the underside or bearing face of the ring, in the manner shown in Figure 2. As shown in Figures 3 and 4, the cross bar 17 of the traveler is bent or deflected inwardly in the horizontal plane thereof from an imaginary line 21 connecting the junction of its ends with the depending legs 18 to provide guide portions at opposite sides of the center of said bar for guiding and controlling the path of travel of the thread as it passes from the traveler to the bobbin and for maintaining the thread in a zone between the center and end of the bar. To accomplish these ends, the cross bar is shaped to provide a plurality of bends and is provided at each sideof its center with substantially V-shaped thread-control portions 22 preferably formed by a comparatively sharp bend 23 at the center of the bar and more or less arcuate or curved bends 24 between such center and the. bar-ends, the thread being adapted to engage the bar in the vicinity of one or the other of said bends 24 and the oblique or angularly-disposed continuation thereof preventing the thread from traveling to the center or end of the bar. By this construction, the angular shape of the bar at opposite sides of its center not only controls the position of the thread as it passes under the bar but it also forces or tends to force the thread to travel in the path between the center bend 23 and the extreme ends of the bar, thereby resulting in the traveler being substantially balanced in its movement about the ring 12 and being retained at all times with both bearing arms 20 in contact with the ring and preventing tilting and tail-whipping of the traveler as it spins about the ring. In addition to these advantages, the thread, in passing under the traveler, is free to play or travel along the zone thereof adjoining the curved section 24 and cannot concentrate at any definite point, thereby preventing the thread from wearing a cut or groove in the traveler and avoiding the liability of damaging or breaking the thread.

As seen in Figure 3, the bearing arms 20 of the traveler bar are substantially in line with or in the directional plane of the adjoining laterallybent end portions of the bar beyond the bends 24 thereof, whereby said arms are disposed obliquely to the imaginary line 21 connecting the vertically-bent ends of the cross bar and are thereby assured being retained constantly in proper position on the bearing ring 12.

I claim as my invention:-

1. A bar traveler for spinning machines, com prising a thread-engaging bar having a laterallybent oblique portion at one side of its center and disposed in the plane of the bar with its apex facing inwardly for confining the thread travel between the center and end of the bar.

2. A bar traveler for spinning machines, com.- prising a thread-engaging bar having a lateral substantially centrally disposed bend and laterally-bent, oblique thread-guiding portions at opposite sides of said center bend, the latter and said oblique thread-guiding portions being disposed in the plane of the bar with their apexes facing inwardly, whereby the travel of the thread relative to the bar is confined between the center and adjoining end of the bar.

3. A bar traveler for spinning machines, having a thread-engaging bar and legs depending from the ends thereof, said bar having laterallybent portions at opposite sides of its center disposed in the plane of the bar forming guides for controlling the path of travel of the thread over the same.

4. A bar traveler for spinning machines, comprising a thread-engaging bar having a plurality of lateral bends therein and disposed in the plane of the bar with the apexes thereof facing inwardly to provide adjacent the ends of the bar obliquely disposed thread-engaging guide portions.

5. A bar traveler for spinning machines, comprising a cross bar having legs depending from its opposite ends terminating in outwardly-facing bearing arms, said cross bar having a laterallybent, oblique thread-guiding portion at one side of its center and disposed in the plane of the bar with its apex facing inwardly, the bearing arm adjoining said thread-guiding portion being substantially in the same general plane as the outer section of such, portion.

' 6. A bar traveler for spinning machines, comprising a cross bar having legs depending from its opposite ends terminating in outwardly-facing bearing arms, said cross bar having a lateralsubstantially centrally disposed bend and laterally-bent, oblique thread-guiding portions at opposite sides of said center bend, the latter and said oblique thread-guiding portions being disposed in the plane of the bar with their apexes facingv inwardly, whereby the travel of the thread relative to the bar is confined between the center and adjoining end of the bar, said bearing arms extending generally in the direction and substantially in the plane of the respective outer sections of said oblique, thread-guiding portions.

'7. A bar traveler, comprising a cross bar having bearing arms projecting therefrom for engagement with a. spinning ring, said cross bar having angularly-bent portions adjacent its ends and disposed in the plane of the bar with the apexes thereof facing inwardly for confining and guiding the thread within the zone defined by such portions.

HARVEY E. HERR. 

